/*********************************************************************************************************
**
**                                   GJB 标准测试集
**
**                               Copyright All Rights Reserved
**
**--------------文件信息--------------------------------------------------------------------------------
**
** 文   件   名: gjb_S0100904GN_1.c
**
** 文件创建日期: 2021 年 1 月 22 日
**
** 描        述: 使用条件变量同时唤醒一个或者多个等待任务/进程功能测试
*********************************************************************************************************/
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>

// #include "gjb.h"

static int err_count_cv_9041;
pthread_cond_t cond_cv_9041 = PTHREAD_COND_INITIALIZER;                         /* cond used by the two threads */
pthread_mutex_t mutex_cv_9041 = PTHREAD_MUTEX_INITIALIZER;                      /* cond used by the two threads */

void * thread_cv_9041 (void *tmp)
{
    int    rc = 0;

    /*
     * acquire the mutex
     */
    rc  = pthread_mutex_lock(&mutex_cv_9041);
    if (rc != 0) {
        printf("test failed.pthread_mutex_lock\n");
        err_count_cv_9041++;
        return (void *)-1;
    }

    /*
     * Wait on the cond var. This will not return, as nobody signals
     */
    rc = pthread_cond_wait(&cond_cv_9041, &mutex_cv_9041);
    if (rc != 0) {
        printf("test failed.pthread_cond_wait\n");
        err_count_cv_9041++;
        return (void *)-1;
    }

    rc = pthread_mutex_unlock(&mutex_cv_9041);
    if (rc != 0) {
        printf("test failed.pthread_mutex_unlock\n");
        err_count_cv_9041++;
        return (void *)-1;
    }

    return NULL;
}

int gjb_S0100904GN_1(int argc, char **argv)
{
    pthread_t low_id;
    int       rc = 0;

    /*
     * Create a new thread with default attributes
     */
    rc = pthread_create(&low_id, NULL, thread_cv_9041, NULL);
    if (rc != 0)  {
        printf("pthread_create\n");
        goto __errno_handle;
    }

    /*
     * Let the other thread run
     */
    sleep(2);

    rc = pthread_cond_signal(&cond_cv_9041);
    if (rc==0) {
        printf("test pass.pthread_cond_signal return 0\n");

    } else {
        printf("test failed:pthread_cond_signal should return 0,but return %d",rc);
        goto __errno_handle;
    }

    if (err_count_cv_9041) {
        goto __errno_handle;
    }

    printf("<RSLT>..................................................[(0)]\n \n \n");

    return  (0);  

__errno_handle:
    printf("<RSLT>..................................................[(-1)]\n \n \n");
    return  (-1);   
}
